单项选择题

有以下程序
#include <stdio.h>
main()

FILE *fp;
int i,k,n;
fp=fopen("data.dar", "w+");
for(i=1;i<6;i++)

fprintf(fp,"%d ",1);
if(i%3==0)
fprintf(fp, "\n");

rewind(fp);
fscanf(fp, "%d%d",&k,&n); printf. ("%d %d\n",k,n);
fclose(fp);

程序运行后的输出结果是

A.0 0
B.123 45
C.1 4
D.1 2